Timeline for Spin state after measurement on x-direction
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 18, 2017 at 8:05 | vote | accept | Sky | ||
| Apr 18, 2017 at 8:04 | comment | added | ZeroTheHero | Observables are not used to transform states. You compute their averages etc, and in some cases (like $S_x$) they have an interpretation as generators of infinitesimal transformations. Their eigenvalues and eigenvectors have important applications. | |
| Apr 18, 2017 at 7:57 | comment | added | Sky | So what effect does the action of $S_{x,1}=S_{1+}+S{1-}$ have on the initial state if it's not the same as using the projector? I mean, if it doesn't give the state after the measurement, what's its physical meaning? Applying this operator definitely changes the state, after all. | |
| Apr 17, 2017 at 18:47 | history | answered | ZeroTheHero | CC BY-SA 3.0 |